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双折射材料的温度修正 Birefringent Material Temperature Modification CAbR+y @Pb%dS 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: 5iZx
-M cTa$t :K@ 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline sDl@ ^`+Kjhht 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline 0@> 8/"R&yAh 3.Loop over the baseline material samples and determine the number of wavelength entries )zAATBb4. W'{o`O=GGr 4.Loop over each sampled wavelength entry in the baseline material +.
tcEbFL 9][A1+" a.Modify the ordinary and extraordinary refractive index values using (2) above zXaA5rZO ~@d4p|K b.Apply the modified values to the non-baseline material E++3GagdiD $Y?[[>u 5.Set a description on the non-baseline material indicating the temperature change from baseline ]=G dAW Oh;V%G 脚本编程及GUI例程请下载链接: IylfMwLC ,buo&DT{L http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs N~vK8j@ 'b:UafV http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd P X>>h}% [oG
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